pollination vs. fertilisation

Question 1

pollination

Answer 1

• transfer of pollen from anther to stigma
• anther splits open when mature
• pollen discharge
• cross-pollination : transferred between different plants
• self-pollination : transferred between same plant

Question 2

how can self pollination be prevented?

Answer 2

• different ripening times
• unisexuality
• stigma positioned above anthers
• remove anthers

Question 3

fertilisation

Answer 3

• joining of two haploid cells

- pollen grains land, grows a pollen tube down style into ovary

Question 4

how is a seed formed?

Answer 4

• cotyledons : take food from parent and store for use
• radical : embryonic root
• plumule : embryonic shoot
• ovule develops into endosperm tissue (food storage)
• ovule thickens and forms testa

Question 5

fruit

Answer 5

• ovary
• protects seeds
• disperse seeds from parent plant